The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can determine when it's the best time to plant gherkins in San Rafael by reviewing the USDA zone info.

Planting Calendar for Gherkins

Frost tolerance for gherkins:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

Gherkins require warm weather which tells us that you have to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant gherkins in San Rafael is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant gherkins and expect a good harvest is probably September. If you wait any later than that and your gherkins may not have a chance to grow to maturity. You can get started a little bit earlier by starting your gherkins indoors.

Last Frost Date

The average date of last frost is January 31 in San Rafael. You should expect an average low temperature of 30°F in the coldest months of winter.

Remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for San Rafael and it will vary from year to year. Half of the time in San Rafael it frosts late in the year after January 31 so make sure that you are ready to cover your gherkins in the event of a surprise late frost.

USDA Zone Info for San Rafael

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in San Rafael

You may be interested in your other planting guides for San Rafael.